
Last printed 9/3/2002
8
OPERATION
OPERATIONAL FEATURES
The following features are available on the 7600 Series.
Overload
- If the weight exceeds 105% of full capacity, the scale will read out
"OLOLOL", meaning overload.
Underload
- If the weight is below -3% of full capacity, the scale will read out
"ULULUL", meaning system underload.
Automatic Zero-Tracking (AZT)
- Maintains the system zero and is normally set to +/-
1/4 of the display resolution ( The resolution being the smallest increment the scale is
programmed to read). AZT increases the overall accuracy of the system by removing
errors at zero caused by accumulation of debris on the base/container or minor drifts in
the electronics or load cell.
Count/Weigh
- Scale is capable of both counting and weighing functions. The count
may be turned off in calibration if not needed.
Four Selectable Sample Sizes
- Four different sample sizes may be entered into the
scale memory during programming.
Counting Functions
- A variety of different counting methods may be employed,
depending on type of counting selected during calibration.
Sample Update
- Piece weight accuracy may be improved after the initial sample by
adding a quantity of parts between 10% and 100% of the original sample to the platform. When
this is done the scale will recalculate the piece weight, display the new percent error/accuracy for
2 seconds and then return to the counting mode.
Second Base
- An optional second base is available to expand the capacity of the scale.
EXTERNAL CONNECTORS (7600 Scale Version)
The following connectors may be accessed through the opening on the bottom of the scale.
D-Subminiature Connector (9-pin)
- Used with RS-232 Interface.
Remote Display Connector
- Used to connect a remote display option to the scale.
REMOTE BASE PIN-OUT
Round CPC Style connector (8 pin)
- Only found on scales with second base option installed.
This connector is the mating connector for Pennsylvania remote bases, if the 7600 is to be
attached to a base of another manufacture a mating connector kit, part number 48445 may
be ordered from your Pennsylvania Scale distributor. For wiring purposes the following
chart provides the pin out for the Remote Base Connector:
PIN NUMBER
FUNCTION
1 ------------------------------------------ + Signal
2 ------------------------------------------ - Signal
3 ------------------------------------------ Ground
4 ------------------------------------------ Not Used
5 ------------------------------------------ - Sense
6 ------------------------------------------ - Excitation
7 ------------------------------------------ + Sense
8 ------------------------------------------ + Excitation